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Engine-Codes – Generic – U0145

U0145 Code - Lost Communication With Body Control Module 'E'

Quick Answer

When the diagnostic trouble code U0145 appears, it indicates that the vehicle's onboard computer system has lost communication with the Body Control Module 'E'. Common causes include Damaged wiring or connectors, Faulty Body Control Module, Software glitch in the vehicle's computer system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U0145 indicates Lost Communication With Body Control Module 'E'.
Common causes
Common causes include Damaged wiring or connectors, Faulty Body Control Module, Software glitch in the vehicle's computer system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code U0145 Description

When the diagnostic trouble code U0145 appears, it indicates that the vehicle's onboard computer system has lost communication with the Body Control Module 'E'. The Body Control Module is a vital component of the vehicle's electrical system, responsible for controlling various functions such as interior lighting, power windows, door locks, and other convenience features.

OBDII Code U0145 - Lost Communication With Body Control Module 'E'
U0145 Code - Lost Communication With Body Control Module 'E'

Common Causes of U0145

  1. Damaged wiring or connectors
  2. Faulty Body Control Module
  3. Software glitch in the vehicle's computer system
  4. Issues with the CAN communication system
  5. Electrical interference or corrosion

Symptoms of U0145

  1. Non-operational power windows
  2. Interior lights not working
  3. Central locking system malfunctions
  4. Vehicle fails to start
  5. Intermittent electrical issues

How to Fix U0145

  1. Perform a visual inspection of the wiring and connectors to check for any damage or corrosion.
  2. Use a diagnostic scan tool to communicate with the Body Control Module and identify the specific issue.
  3. Replace the faulty Body Control Module if necessary.
  4. Update the vehicle's software to address any glitches in the computer system.
  5. Clear the diagnostic trouble code and test the vehicle to ensure that the issue has been resolved.

Cost to Fix U0145

The typical repair costs for addressing the U0145 code can vary depending on the specific cause of the issue. In general, replacing a faulty Body Control Module can cost between $200 and $600, including parts and labor. However, the total repair costs may range from $100 to $1000, depending on the extent of the repairs needed. It is advisable to consult with a qualified mechanic or auto repair shop to obtain a more accurate estimate based on the vehicle's make and model, as well as the local labor rates.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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